Subtract 4/7 from 3/80
3/80 - 4/7 is -299/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
3/80 = 3 × 7/80 × 7 = 21/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
4/7 = 4 × 80/7 × 80 = 320/560 - Subtract the two like fractions:
21/560 - 320/560 = 21 - 320/560 = -299/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80-4/7 3/80-8/7 3/80-4/14 9/80-4/7 3/80-12/7 3/80-4/21 15/80-4/7 3/80-20/7 3/80-4/35 21/80-4/7 3/80-28/7 3/80-4/49